Envelop-machine.



J. PROEHLIGH.

BNvELoP MACHINE. y AIPXJIQCIIONv FILED JN.22. 1909. 1,1@8734' v v Patented Aug. 25, 1914.

G SHEETS-*SHEET l.

laziness@ lili/enfer J. PROEHLICH. ENVELOP MACHINE. ARPLIGATION HLM) JMLIzz, 190e.

6 SHEETS-SHEET 2.

/J 20 (g I WHNkSSES: l INVENTOR Patented Aug. 25, 1914.

J.: FROEHLGH. vENVELOP MACHINE. APPLICATION fumi JANfz; 1909.

.Patented Ag. v'25, 1914.

' -6 SHEETS, VSHEET 3.

' \N\'/ENT0R WITNESSES:

ATTURNEY J. FROEHLIGH.

' BNVELOP MACHINE.

. l APPLICATION rlLgD JANJZ, w09.. Y l ,108,734.

Patented Aug. 25,191@

v 6 SHEETS-SHEET 4 J. FROEHLIGH. ENVELO'P MACHINE.

'APPLICATION FILED JAN.22,1909.

Patented Aug. 25, 1914 6 SHBETS-SHEET 5,

1 l! 1 Mmmm "111i |NVENT0R Y WHNESS'ES; ai?? l 11m-Inn y? yEIIIIIIIIIIIIllllI|lllillllllIlllldlllllllll Illllllllllllh ATTORNEY J.' PROEHLICH.

ENVELOP MACHINE. APPLICATION FILED Lum?.

Fatente'd Aug. 25, 1914.

5 SHEETS--SHEBT G.

WITNESSES:

m@ ATTORNEY UM TED sTailns PATENT onirica.

JOSEPH FROEHLICH, OF NEW YORK, N. Y., ASSIGNOR, EY MESNE'ASSIGNMENTS., 'TQ

UNITEB STATES EN'J'ELOPE COIkIPANY, OF

POR-ATION OF MINE.

SPRINGFIELD, MASSACHUSETTS, .4i-conF ENVELOP-MACHINE.

1 lesje-i.

which can be attached to the ordinary type.

of reciprocating envelop machines, so that by means of my mechanism it will be possible to make on envelop machines of the reciprocating type the standard commercial cnvelops now made, and also envelope' known as open window or transparentem velops, that 1s envelops, having an opening 1n the portion of the envelop occupied bythe address, this opening being covered by a transparentsheet .of paper, so that the inclosure in the envelop, will disclose the address, suitably w'itten .upon it,fthrough this 'transparent covering.

' In the drawings accompanying and forni# ing part of this specification, Figure 1 is a side elevation .of the mechanism, showing its relation to the plunger and creasing table of an ordinary envelop machine. F ig'.'2 is a rear elevation' with certain parts broken away. Fig. 3 isa view showing an envelop blank with the piece of transparent paper attached thereto. Fig. 4 is an enlarged sectional' view taken on the line 12-12 of Fig. 2. Figs. 5 and 6 are views-showing the transparent paper conveyer in various positions in relation to the 4plunger platefa plan view of which is shown in Fig. 7.l F ig.- 8 `is a detailed viewV showing the clutch on the upper feed roll shaft. Fig. 9 is. aview showing the two feed rolls. Fig. 10 1s a sectional view taken on ,the line 10-10 of Fig. 9' and looking in thedirection indicated by the arrow. Fig. 11 is' another view similar to Fig. 10, showing the feed rolls separated. Figs. 12, 13, and 14 are sectional views taken on the line 12--12 of Fig. 2 showingdiiferent positions of the.4 cutting mechanism. Fig. is a sectional view taken on'the .line 15`15 of Fig. Fig. 1'6 is a sectiontaken on the line 16-16 of F 7.

In detail, 1 and 2 represent the left and right hand side frames of my mechanism These side frames are` suitably mounted upon the table 3 of an ordinary envelo 'machinc. The right hand-siderame 2 '1S ex-.

i Specification of Letters a'cent.

Application filed January 22, 1309.

.1) for 'ing piece 10, which lits into `,ing its bearings inthe upper Patented Aug. 25, 1914-. Serial No. 473,621.

tended in its upper right hand end (see Fig. the purpose of carrying a spindle or shaft 6 upon which the roll of transparent paper 7 is mounted. This rollis held in position by the flange- 8 on one side and by the flange 9 on the othervside. held in position on the shaft 6 by the-locla groove at the end ofthe shaft 6 and is held in position aga-inst the roll of paper 7 by the spring 11 which encircles the shaft 6 Vbetween the `flange 9 and the side frame 2 (see Fig.i2).

12 is a continuously revolving shaft havend of the side frames 1 and 2'. Mounted on the right hand end or" vthis shaft, isa vsprocket wheel 13 over which a chain 14 runs, which'is utilized for the purpose of driving my mechanism.

15 is a rcam mounted on the left hand end' yof the sha-ft l2 and-is for the purpose of engaging the cam roll' 16 mounted on lever 17, which in turn is secured to a.' rock shaft 18, that carries two arms 19. The lower end of the aforesaid arms 19 are joined by the transparent' paper conveyor 2O (see Figs. 1, 2A and 4). 21 is a pinion secured to shaft 12, which meshes into the gear 22, whichin turn is mounted on a Sleeve 27 (see Fig. 8).

24 'is the lower feeding roll, which revolves in arms 25, which in turn are secured to a rock shaft 26, whichhas its-bearings in' the side frames 1 and 2. vTwo springs 91 are mounted on the lower end'of arms-25 for the purpose of swinging the-lower feed roll 24 against the upper feed roll'23 (see Figs. 8, 9, 10 and 11).v The right hand end. of the sleeffe 2'( has a notch 28- for the purpose of engaging with the tongue 29 of the clutch 30 when the same isv moved over to its extreme .position toward the left, 31 is a key secured tothe feed rolll23 and moves freely in the keyway32`of lthe clutch'30.

(See Fig. S.)

The gear 22 and the sleeve 27 revolve continuously and when the clutch is moved over toward the left, the tongue 29-engages `the-notch 28 of the sleeve 27, and the re-' volving motion of the sleeve 27 is thereby transmitted to the feed roll23.v The object of the clutch 30 is t'o disengage the feed rolls 23 and 24., so that by lmeans of the knurli ing on clutch 30, the .feedrolls 23 and-24 can be revolt-fedA by hand. See Figs. 8; and 9.)

33 is a' short lever' mounted on a stud 3e Flange 8 is (we Figs. and 11), having at its end a cam shaped pro'ection 35 acting on one of the arms 25, an is for the purpose of separuting the two feed rolls, for ythe more ready 'insertion of the transparent web of paper,

when it is moved into the position shown in Fig. 11. The revolving motion of the feed roll 28 is transmitted to the feed roll 24 by the gears 86. 0

Referring to Figs. 14 45, 6 and 7, 5 1s a specially constructed plunger late mounted on the lower end o a tube 7, on 'whose upper end is mounted a block 38, having s. nipple 39, which is connected by means o a suitable rubber hose to s suction pump {not shown). 40 is s release valve lever swlngingr on a pivot 41, which is secured to the block 38. The lower end of this release valve lever 40 is for the purpose of covering en aperture 43 in the tube 37. 42 are springs, one end ofwhich is secured to the release valve lever 40 and the other end secured to a stud which is part of the block 38. 44 is a stationary cam shaped iece secured to the upyer end of a frame 5, guiding the tube an plun er plate 37 and 5 respectivelyr (see Fig. l

Referring to Fig. 7, 46 are passages onmeeting1 with the tube 37. l47 are openings in the ower side of the plunger 5 and connectin with the passages 46. Thelower end o the plunger plate contains a recess 92, which is for the pu ose of clearing the gum strip 86 on'the b ank 84, whenthe plats comes in contact with same in the creasing; box 4. This can be clearly seen in Figs. 7 and 16. This allows the guinuied blank to be run through the machine without any chance of itbeing stuckto the under side of the plunger plate, which is s. serious defect on all other known mechanisms which either apply the transparent sheet by means of a hopper in the plun er, or under preure at a middle station ta le or table intervening between the gumming and plunger mechanisms of the envelop machine. 48 are two fingers mounted on a. sleeve 49 which revolves freely on the rock shaft 18 and are connected to a link by means of the pin 51. Thislink 50 straddles the cam shaft 12 and has mounted on its other end a cam roll 52 which is engai liy the Smm 53 secured tothe shaft 12.

iisg. 5.

infermi to si s, si is a mk shaft mried at eac find y the side frames 1 and 2. Securely mounted on the shaft 54 is an arm 55 ha "ing at its end a cam roll 56 which engages s .th a cam 57 on the shaft 12 "ls'iibwn by dotted lines in Fig.- 4). Secured to the shaft 54 by means of the pins 60, is a sleeve 58 havin at its lower end an cxtension 61 into w ich are driven studs 59.-

(See Fis. 15..) As shown' in Fi 4, 12,' 13 and 14 t cse studs 59 pass throu the knife .gum 86 encircling 'transparent paper is first passed 'tween the blade 62, through washer 03, springs 64 {Ln-ji have mounted on their lower ends the check nuts 65. 66 is a knife blade carrier, which is loosely mounted on the shaft 54. 67 are screws secured to the knife blade carrier 66. These screws project through openings 68 in the sleeve 58. 69 are coil springs mounted between the heads of the screws 67 and the shoulders of a recess 70 in the sleeve 58. 71 is a knife `guide bar and is secured to the knife blade carrier 66 by means of the screws 72 which ass through slotted holes 73 in the'knife hnde carrier 66. .74 are adjusting Screws acting a ainst the knife guide bar 71. (See Fi 4 A The norma position of the shaft 54, knife blade carrier 66 and sleeve 58 is shown in Figs. 4 and 12. This position is obtained by means of the sprin s 74B connected with the stud 75, which is riven into the shaft 54. This position is controlled b the lower part of the cam 57, the cam rol 56 and the lever 55.

:Referring again to Figs. 12, 13 and 14, 76 is n. stationary knife mounted on a cross bnr '77, which is supported by the side frames 1 and 2. 78 is nn equalizing bar located ina slot running longitudinally in the bar 77.

79 are springs underneath the bur 78, having a tendency to keep tlie bar 78 in the position shown in Fig. 12. 80 and 81 are guide plates secured to the knife blade carrier 66 by means of the screws 82 and are somewhat separated in order to let the transparent strip 83 pass freely between them.

-Fig. 3 shows an envelop blank 84 having the severed trans arent strip 85 pasted over the opening 87 y means of the strip of the openin 87. The

rolls 23 and 24, said rolls continuously unwind the paper, while in operation. The transparent aper is then the two gui e lates 80 an 81. The circumference of t e feed rollsfare such that a suitable length of the transparent paper is fed for eaci revolution of the feed rolls. When the proper length of .the stri 88 has been 'fed out, the 'cam 57 causes t elrnife blade carrier 66 to assume the position f shown in Fig. 13. The transparent strip ie now held between the knife uide bar 71 sind the equalizing bar 78 and ilso between the knife blade carrier 66 and transparent pe per .conveyer 20. The spring 69 acting against the-screw 67 keeps the knife blade l' carrier 66 against one side of the knife bnr as shownv in Figs. 12 and 13. When the 'cam 57 has .moved into the position shown in Fig. 14, givin rocking movement to the4 aft 54, sleeve 58 assed between a still further and studs 59, the knife bladecarrier 66 by being peventedfrm any further .movement account ofcomngjn contact with thel pp'er-strip-conveyer 20 and equaliz'ing L' bai' T8, causes the spring 69 to be compressed as shown in Fig. 14. The lower side of the knife bar G2 has passed beyond the sharp edge of the stationary knife 'T6 5 causing the strip of transparent paper to be severed from the web. The ngers 4S have assumed position as shown in F ig. 14 and are now .iolding the severed strip securely to the ltransparent strip conveyer 20. The knife blade carrier 66 now returnsV to its normal position again, as indicated by Fig. The conveyer is now operated upon by means of the arms 19, rock shaft 1S, lever 1T, cam roll 16, caml, and 'swung into tie position against the underside of the plunger plate as shown in Fig. .A The fingers -iS areraised slightly by means of the cam 53 and are held in thisposition for a part of 'a revolution of the machine. A vacuum is formed as rion as -the stripcomes in contact -with the underside of the plunger by covering the apertures l?. The conveyer 20 now returns to its normal position as indicated in Fig. 6 and by the dotted lines in Fig. e. The plunger plate with the transparent paper strip-underneath it now descends upon the envelop blank Si causingv same to be depressed through the creasing box 4 and thus placing the transparent paper over the strip of gum on the lank. Shortly before the plunger plate gets to its lowest position, the release valve lever 40 coming in contact with the stationary cam shaped piece 44 micovers'the aperture i3 in the tube 87 thus destroying the vacuum formed by the transparent strip as previously described. The plunger plate 5 now returns to its normal position as indicated in Fig. 5,ready to receive another strip. The-notches S8 in the plunger plate 5 permit the fingers 4S to swing freely' through it, as shown in Fig. '7. The spring 89 is for the purpose of keeping the fingers -l8 in proper contact withthe conveyor 20. The spring 90 is for the purpose of returning the conveyor 20 to its normal position. During the time that the transparent paper is held in the position as shown in Fig. 1i, the feed rolls by revolving continuously, cause the transparent paper S3 to ybuckle as also indicated by the dot and dash lines in Fig.

lVhat I lcla-im as my invention and desire to secure by Letters Patent is:

l. In an envelop machine, the combination with a creasing box to receive an envelop blank having an opening and a gummed strip around said opening, of a reciprocating plunger arranged to cooperate with said creasing box in folding an envelop blank, and having a recess corresponding with the gummed strip around said open- 2. ln an envelop machine, the combinavelopv blank having, an opening and a vertically reciprocating plunger arranged to cooperate with said creasing box in folding an envelop blank, of means. for applying a. single piece of paper to said plunger in itsraised position over said creasing box and in registration with the opening in the envelop blank,'and means for holding said piece of paper in contact with said plunger during its movement into said creasing box.

3. The combination with the folding mechanism of an envelop machine, comprising a vertically reciprocating plunger and means for holding a gummed envelop blank below said plunger and in registration therewith, of means for feeding a continuous strip of paper,'means,for severing a piece from said continuous strip arranged to be applied to said blank by the descent of said plunger, and means for receiving said severed piece and carrying it to the under side of said plunger when in its raised position.

4. The combination with the folding mechanism of an envelop machine, comprisingV a vertically reciprocating plunger and means for holding a guinmed envelop blank below said plunger and in registration therewith, of means for feeding a continuous strip, a rocking arm at one end of its movement arranged to receive said strip, means for severing from said strip a piece held by said arm, and with said rocking arm at the other end of its movementl arranged to convey said severed piece to the under side of said plunger when in its raised position.

5. The .combination with the folding mechanism of an envelop machine, comprising a vertically reciprocating plunger .and means for holding a gummed'envelop blank below said plunger and in registration therewith, of means .for feeding a continuous strip of paper, means for severing a piece from said continuous -strip arranged to be applied to said blank by the descent of said plunger. means for receiving said severed piece'an( carrying it to the under side of said plunger when in its'raised position, and means for holding said piece in contact with said under side during said descent.

6. The combination with the folding plunger and the creasing box of an ordinary envelop machine, means for unwinding a continuous strip of paper, a swinging conveyor arranged to receive the end of said paper as it is unwound. a cutting mechanism between said conveyer and said unwinding means arranged to sever a piece from the end of said continuous strip received by said conveyer suitable to be applied to an envelop blank on said creasing table. and means for swinging said convever from said first position to carry said severedpiece to the under side of said plun; a r in its raised position.

V' The combination with the folding mech- Yertiozilly. reciprocating plunger and means' for holding a guiuii'iecl envelop blank below said vplunger':incl -n registration. therewith, ot ai roelt shalt, arms eurrietl by suiclroel .Shaft and a paper com'eyer on the lower end of su-icl arme, yielding means-for holding o piece of peper iii-contact wit-li sncl- Con- 've5fer,'imd i-iieiuis for` operating seid roc-Lr shaft, 'thereby swinging Suid conveyor to bring* lsaid pie-ee ot' pap-er to tlieuntler Sitlev olf Suiclplimger in itsraisecl position. l 8. Thecombination *wit-little iolilmg meelieinem ot an envelop machine, comprising a i vertically 4reciproeating plunger and menne ffor Aholding regu-mined envelop blzuili below .said plunger intl iii registration therewith,

of' e .paper coiiveyer for reeeii'ing u piece of y paper designed toV be brought into Contact with said blank as Suid plunger .clesoens,

Wit-li the lower" efl of said fingers lielcl in yielding Contact Wit-l1 sind piece ol paper on.snicllcom'oyer, means for operating said rook shaft thereby swinging seul eom'eyei to bringsuid piece-of paper to the under side f of said plunger when in its raised position, ano menus for raising the ends of said lingers when said piece of paper is brought into said Contact.

JOSEPH FBoEHLiei-L YVitnesseS F. L. SCHMIDT, E. M. J. KUNZE. 

